Well, you can't say we didn't warn you. Summer went out with a bang, but those sizzling days are history. The big cool-down is underway. You might even need a sweater this morning. Temperatures won't climb any higher than the lower 70s. And clouds - remember those? - will make an appearance this morning.

Tomorrow and the weekend look just as cool. We may even see rain by Sunday.

A lot's been made of Alaska's proximity to Russia, now that Alaska Gov. Sarah Palin is on the GOP presidential ticket. Just how close? Well, turns out you can see a Russian island from a U.S. island. Check it out. (Thanks to Slate.)